what the hell is a nug i keep hearin people say it but i dunno what it means. im good on most other words its just this one i got trouble with.
1 Improper use of contact lenses or steroid eyedrops can lead to fungal infections, which in turn can cause corneal ulcers. Also, a corneal injury that results in plant material getting into the eye can lead to fungal keratitis.  Acanthamoeba are microscopic, single-celled amoeba that can cause human infection.
Infection can be an underlying cause of a corneal ulcer, which resembles an abscess on the eye. If left untreated, a corneal ulcer can lead to severe vision loss. More serious eye infections can penetrate the deeper, interior portions of the eye to create sight-threatening conditions such as endophthalmitis.